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m68knommu: platform setup for 532x ColdFire parts

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Switch to platform style configuration for 532x ColdFire parts.
Initial support is for the UARTs. DMA support moved to common code
for all ColdFire parts.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Greg Ungerer 2008-02-01 17:34:58 +10:00 committed by Linus Torvalds
parent e206da0bb3
commit b2e1810e64
1 changed files with 70 additions and 10 deletions
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80
arch/m68knommu/platform/532x/config.c
View file

@ -21,10 +21,11 @@
#include <linux/param.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <asm/dma.h>
#include <linux/io.h>
#include <asm/machdep.h>
#include <asm/coldfire.h>
#include <asm/mcfsim.h>
#include <asm/mcfuart.h>
#include <asm/mcfdma.h>
#include <asm/mcfwdebug.h>
@ -38,11 +39,60 @@ extern unsigned int mcf_timerlevel;
/***************************************************************************/
/*
* DMA channel base address table.
*/
unsigned int dma_base_addr[MAX_M68K_DMA_CHANNELS] = { };
unsigned int dma_device_address[MAX_M68K_DMA_CHANNELS];
static struct mcf_platform_uart m532x_uart_platform[] = {
{
.mapbase = MCF_MBAR + MCFUART_BASE1,
.irq = MCFINT_VECBASE + MCFINT_UART0,
},
{
.mapbase = MCF_MBAR + MCFUART_BASE2,
.irq = MCFINT_VECBASE + MCFINT_UART1,
},
{
.mapbase = MCF_MBAR + MCFUART_BASE3,
.irq = MCFINT_VECBASE + MCFINT_UART2,
},
{ },
};
static struct platform_device m532x_uart = {
.name = "mcfuart",
.id = 0,
.dev.platform_data = m532x_uart_platform,
};
static struct platform_device *m532x_devices[] __initdata = {
&m532x_uart,
};
/***************************************************************************/
static void __init m532x_uart_init_line(int line, int irq)
{
if (line == 0) {
MCF_INTC0_ICR26 = 0x3;
MCF_INTC0_CIMR = 26;
/* GPIO initialization */
MCF_GPIO_PAR_UART |= 0x000F;
} else if (line == 1) {
MCF_INTC0_ICR27 = 0x3;
MCF_INTC0_CIMR = 27;
/* GPIO initialization */
MCF_GPIO_PAR_UART |= 0x0FF0;
} else if (line == 2) {
MCF_INTC0_ICR28 = 0x3;
MCF_INTC0_CIMR = 28;
}
}
static void __init m532x_uarts_init(void)
{
const int nrlines = ARRAY_SIZE(m532x_uart_platform);
int line;
for (line = 0; (line < nrlines); line++)
m532x_uart_init_line(line, m532x_uart_platform[line].irq);
}
/***************************************************************************/
@ -80,7 +130,7 @@ int mcf_timerirqpending(int timer)
/***************************************************************************/
void config_BSP(char *commandp, int size)
void __init config_BSP(char *commandp, int size)
{
mcf_setimr(MCFSIM_IMR_MASKALL);
@ -99,7 +149,7 @@ void config_BSP(char *commandp, int size)
mcf_profilevector = 64+33;
mach_reset = coldfire_reset;
#ifdef MCF_BDM_DISABLE
#ifdef CONFIG_BDM_DISABLE
/*
* Disable the BDM clocking. This also turns off most of the rest of
* the BDM device. This is good for EMC reasons. This option is not
@ -110,9 +160,19 @@ void config_BSP(char *commandp, int size)
}
/***************************************************************************/
/* Board initialization */
/********************************************************************/
static int __init init_BSP(void)
{
m532x_uarts_init();
platform_add_devices(m532x_devices, ARRAY_SIZE(m532x_devices));
return 0;
}
arch_initcall(init_BSP);
/***************************************************************************/
/* Board initialization */
/***************************************************************************/
/*
* PLL min/max specifications
*/